RT Journal Article SR Electronic T1 Hyperperfusion Syndrome with Hemorrhage after Angioplasty for Middle Cerebral Artery Stenosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1597 OP 1601 VO 22 IS 8 A1 Liu, Amon Y. A1 Do, Huy M. A1 Albers, Gregory W. A1 Lopez, Jaime R. A1 Steinberg, Gary K. A1 Marks, Michael P. YR 2001 UL http://www.ajnr.org/content/22/8/1597.abstract AB Summary: Hyperperfusion syndrome is a well-documented complication of carotid endarterectomy, as well as internal carotid artery angioplasty and stent placement. We report a similar complication after distal intracranial (middle cerebral artery [MCA] M2 segment) angioplasty. To our knowledge, this is the first report of hyperperfusion syndrome after intracranial angioplasty of a distal MCA branch.